Final answer:
The sentence "Ellos vinieron de Argentina." is correct. It translates to "They came from Argentina."
Step-by-step explanation:
The sentence "Ellos vinieron de Argentina." is correct as written. In Spanish, "ellos" means "they" and "vinieron" means "came." Therefore, the sentence translates to "They came from Argentina." The verb "vinieron" matches the subject "ellos" in both tense and number, making the sentence grammatically accurate.
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